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2073498 
Journal Article 
Industiral fluorosis 
Franke, J; Rath, F; Runge, H; Fengler, F; Auermann, E; Saale, GL 
1975 
Yes 
Fluoride
ISSN: 0015-4725 
HEEP/75/10344 
8 
2 
61-85 
HEEP COPYRIGHT: BIOL ABS. Findings on workers in an aluminum plant who developed industrial fluorosis are presented. Early signs of the disease are nocturnal back pains and restriction of the rotation of the trunk. Stage I of the disease usually occurs after 10 yr, stage II after 15 yr III after 20 yr. The diagnosis was established at an early stage through biopsies of the iliac crest by histological and microanalytical determinations of F--. A F-- level exceeding 4000 ppm in the iliac crest ash was associated with typical signs of flurosis. The early histological changes including the microradiographic findings and typical foci of calcification in the corticalis are demonstrated.